Semiconductor laser device
KUBOTA MASAYUKI
1990-11-06
著作权人MITSUBISHI ELECTRIC CORP
专利号JP1990271586A
国家日本
文献子类发明申请
其他题名Semiconductor laser device
英文摘要PURPOSE:To make it possible to monitor each light intensity of the beams independently, emitted from a plurality of light-emitting sections, by having a plurality of photo detectors ready that are provided corresponding to each laser beam emitted from the rear end and detect the wave-front converted laser beams from an optical wave guide layer as monitor beams. CONSTITUTION:The laser beams A', B' emitted from the rear end of a laser diode (LD) element 1 are wave-guided by an optical wave-guide layer 5. This wave-guide layer 5 has a lens 6 which converts the laser beams A', B' from diffused beams into condensed beams A'', B'', and the beams A'', B'', are separated and strike the photo detectors 32, 31 respectively provided on the rear ends of the optical wave-guide layer 5. This makes it possible to detect each light intensity of the beams A'', B'' by the photo detectors 32, 31 independently, and makes it possible to monitor each light intensity of the beams A, B emitting from the front of the 2-beam array LD element L.
公开日期1990-11-06
申请日期1989-04-12
状态失效
内容类型专利
源URL[http://ir.opt.ac.cn/handle/181661/86768]  
专题半导体激光器专利数据库
作者单位MITSUBISHI ELECTRIC CORP
推荐引用方式
GB/T 7714
KUBOTA MASAYUKI. Semiconductor laser device. JP1990271586A. 1990-11-06.
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